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A platform for research: civil engineering, architecture and urbanism
LASER-ROUGHENED REACTION-BONDED SILICON CARBIDE FOR WAFER CONTACT SURFACE FABRICATION
A method of making a ceramic device with a controlled roughness includes using a defocused laser beam to roughen a surface of a ceramic substrate, and removing one or more portions of the roughened surface without removing all of the roughened surface. If desired, the ceramic device may include reaction-bonded silicon carbide, and an opening may be formed in the device so that the device can be used to apply a clamping suction to a wafer surface. A ceramic surface with a controlled roughness is also disclosed. The defocused laser beam may be used to make the surface rough enough to prevent it from sticking to a mating element, and to have adequate wear resistance, but not so rough as to prevent the formation of sufficient suction to clamp the surface to a mating element.
LASER-ROUGHENED REACTION-BONDED SILICON CARBIDE FOR WAFER CONTACT SURFACE FABRICATION
A method of making a ceramic device with a controlled roughness includes using a defocused laser beam to roughen a surface of a ceramic substrate, and removing one or more portions of the roughened surface without removing all of the roughened surface. If desired, the ceramic device may include reaction-bonded silicon carbide, and an opening may be formed in the device so that the device can be used to apply a clamping suction to a wafer surface. A ceramic surface with a controlled roughness is also disclosed. The defocused laser beam may be used to make the surface rough enough to prevent it from sticking to a mating element, and to have adequate wear resistance, but not so rough as to prevent the formation of sufficient suction to clamp the surface to a mating element.
LASER-ROUGHENED REACTION-BONDED SILICON CARBIDE FOR WAFER CONTACT SURFACE FABRICATION
LASERGERAUHTES REAKTIONSGEBUNDENES SILICIUMCARBID ZUR HERSTELLUNG EINER WAFERKONTAKTFLÄCHE
CARBURE DE SILICIUM LIÉ PAR RÉACTION ET RENDU RUGUEUX POUR FABRICATION DE SURFACE DE CONTACT DE TRANCHE
COOMBS NICHOLAS (author) / COPPOLA JON (author) / AGHAJANIAN MIKE (author) / CHRISS AARON (author)
2023-09-27
Patent
Electronic Resource
English
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